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144287142873 = 31013591326449
BaseRepresentation
bin1000011001100000101…
…1110001001111011001
3111210102121201022011120
42012120023301033121
54331000002032443
6150141250115453
713265366323056
oct2063013611731
9453377638146
10144287142873
1156212370025
1223b6957bb89
13107b5b2c323
146daab6a02d
153b472b6083
hex21982f13d9

144287142873 has 16 divisors (see below), whose sum is σ = 194828976000. Its totient is φ = 94973676800.

The previous prime is 144287142871. The next prime is 144287142913. The reversal of 144287142873 is 378241782441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 144287142873 - 21 = 144287142871 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (144287142871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554448 + ... + 772001.

It is an arithmetic number, because the mean of its divisors is an integer number (12176811000).

Almost surely, 2144287142873 is an apocalyptic number.

It is an amenable number.

144287142873 is a deficient number, since it is larger than the sum of its proper divisors (50541833127).

144287142873 is a wasteful number, since it uses less digits than its factorization.

144287142873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326912.

The product of its digits is 2408448, while the sum is 51.

The spelling of 144287142873 in words is "one hundred forty-four billion, two hundred eighty-seven million, one hundred forty-two thousand, eight hundred seventy-three".

Divisors: 1 3 101 303 359 1077 36259 108777 1326449 3979347 133971349 401914047 476195191 1428585573 48095714291 144287142873